66007270020775 has 24 divisors (see below), whose sum is σ = 82261804872800. Its totient is φ = 52539509468160.

The previous prime is 66007270020761. The next prime is 66007270020787. The reversal of 66007270020775 is 57702007270066.

It is a happy number.

It is not a de Polignac number, because 66007270020775 - 2²⁵ = 66007236466343 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 429051667 + ... + 429205483.

Almost surely, 2^{66007270020775} is an apocalyptic number.

66007270020775 is a deficient number, since it is larger than the sum of its proper divisors (16254534852025).

66007270020775 is a wasteful number, since it uses less digits than its factorization.

66007270020775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 240283 (or 240278 counting only the distinct ones).

The product of its (nonzero) digits is 1728720, while the sum is 49.

The spelling of 66007270020775 in words is "sixty-six trillion, seven billion, two hundred seventy million, twenty thousand, seven hundred seventy-five".